Borla 05-08 Subaru Legacy GT Cat-Back System
Borla 05-08 Subaru Legacy GT Cat-Back System
Description
ExhstSysKt
The BORLA® sound of power. Its been described as asonic shot of adrenaline. An intoxicating concert ofsteel, gears and combustion that echoes from thespeedways, deserts and highways of the world.The sound of more victory laps than any otherbrand, the BORLA® exhaust note has become the quintessentioal soundtrack of high-performance motoring. And like all good automotive designs there is function behing the form. As any driving enthusiast knows, the sound of an exhaust provides more than just ear candy. Its a communications conduit between car and driver. A link between human and machine. The exhaust sound provides accoustic feedback of engine rpm to aid the driver in critical decisions such as gear selection or throttle input in rev-match shifting. At BORLA®, we understand this concept better than any exhaust manufacturer. Combining patented technology with computer modeling, extensive prototyping and advanced sound analysis tools. BORLA® engineers spend countless hours tuning exhaust systems to best reflect the personality and performance of vehicle applications. The result is an enhanced driving experience. With unrivaled clarity, the BORLA® exhaust note can help a driver stay within the powerband through a difficult section, using the exciting sensory feedback of sound. With unrivaled clarity the Borla exhaust note can help a driver stay within the powerband through a difficult section, using the exciting sensry feedback of sound.
Additional Information
S-Type Cat-Back(tm) Exhaust System For 2005-2009 Subaru Legacy GT 2.5L 4 Cyl.. Turbo All Wheel Drive Automatic/ Manual Transmission 4 Door.
Application Summary
2005-2009 Subaru Legacy GT 2.5L 4 Cyl.. Turbo All Wheel Drive Automatic/ Manual Transmission 4 Door.
Part Type
Exhaust System Kit
Product Overview
Borla Performance Industries has once again developed a unique performance exhaust for a Subaru. This time, the Borla R&D Team has engineered a bold dual exhaust system for the Legacy GT Turbo (PN 140123). Borla made a big splash in the sports compact aftermarket with their stainless steel Header and Cat-Back for the WRX, winning many performance shootouts. The Legacy GT Turbo with the 2.4L 4-cylinder engine is a natural for the Borla straight-through, free-breathing mufflers and smooth CNC mandrel bent high-quality T-304 austenitic stainless steel exhaust pipes. This split rear system exits with large polished T-304 stainless steel oval Borla embossed rolled edge tips. Borla testing reveals power increases that most likely are a direct correlation to the increased air flow the Borla system exhibits. All this and 20% lighter than the stock system. A great performance exhaust with a powerful sound and the durability that has made Borla famous. When you deal with the high exhaust temperatures of turbocharged engines, the aerospace-bred Borla exhaust is like money in the bank. With credentials on the street and the track, it's no accident so many serious performance enthusiasts choose Borla Performance Exhaust for their Subaru vehicles. Borla, the original pioneers of aircraft-grade high-quality T-304 austenitic stainless steel (superior to T-409 or aluminized steel) free-flow exhaust utilizes its patented award and race winning technology to deliver quality, sound, performance gains and enhanced fuel economy all with an easy bolt-on installation. All Borla street products carry the famous Borla written million-mile warranty.
| Additional Application Notes | |
|---|---|
| • Single 2.5in. Into Dual 2in. Out; Incl. Connecting Pipes/Mufflers/Hardware/4.25in. x 3.5in. Oval x 5.5in. Long Single Rolled Angle-Cut Tip; Split Rear Exit; | |
| • T-304 Stainless Steel Single 2.5in. Into Dual 2in. Out; Incl. Connecting Pipes/Mufflers/Hardware/4.25in. x 3.5in. Oval x 5.5in. Long Single Rolled Angle-Cut Tip; Split Rear Exit; Single 2.5in. Into Dual 2in. Out; Incl. Conn. Pipes/Mufflers/Hardware/4.25in. x 3.5in. Oval x 5.5in. Long Single Rolled Angle-Cut Tip; Split Rear Exit;50 State Legal / California Emissions Compliant | |
These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.
Data: v2 - Desc: v4.2 - Upd: 2026-11-07 17:21:40
Features
Important Notice relating to US Domestic Market Trucks & Pickups
Many US-market trucks and pickups are available in multiple cab and bed-length configurations (e.g., Single Cab, Extended Cab, Double/Crew Cab, CrewMax, 5.5ft/6.5ft/8ft beds, etc.). Exhaust system fitment can vary between these chassis versions.
Where available, we list all compatible vehicles, cab types, and bed lengths in the product description. However, depending on your exact configuration, some systems may require optional extension/mid-pipes or minor modification for correct fitment.
Because of these variations, please carefully check your cab configuration and bed length before purchasing. If you are unsure, or if your vehicle has been modified, please reach out to a StreetFX agent.
(keyword: cat-back)Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Product Details
| Construction: | All Welded |
| Description: | Cat-Backâ„¢ System |
| Exhaust Type: | Cat-Back(tm) System |
| Exit Position: | Split Rear |
| Exit Style: | Single Split Rear Exit |
| Grade Type: | Performance |
| Inlet Inside Diameter: | 2.500 in. |
| Inlet Size (in.): | 2.5 |
| Material: | T-304 Stainless Steel |
| Muffler Type: | Straight-Through |
| Off Road Use Only: | No |
| Outlet Outside Diameter: | 2.500 in. |
| Outlet Size (in.): | 2.5 |
| Part Number: | bor140123 |
| System Type: | Cat Back |
| Tail Pipe Diameter: | 2.500 in. |
| Tail Pipe Material: | Stainless Steel |
| Tip / Outlet Finish: | Polished T-304 Stainless Steel |
| Tip Diameter: | 4.250 in. |
| Tip Size: | 4.25in |
| Title Extended: | Legacy GT 2005-2009 Cat-Back(tm) Exhaust System S-Type Part # 140123 |
| Title: | 2005-2009 Subaru Legacy GT Cat-Back(tm) Exhaust System S-Type |
| Tubing Diameter: | 2.500 in. |
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Borla, Borla Exhaust |
| StreetFX SKU | bor140123 |
| SFX Item ID | 4224807 |
| Accounting SKU | bor-140123 |
| Manufacturer SKU | 140123 |
| Manufacturer UPC | 808422401234 |
| Alternative References | 140123, BOR-140123 |
Exhaust System, Cat-Back, Stainless Steel, Natural, Polished Tips, Subaru, 2.5L, Kit
Borla S-type cat-back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower and produce a more aggressive sound and higher flow. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla Sound of Power respected by motoring enthusiasts everywhere.
Each system is built from premium 300-Series austenitic stainless steel, superior to T-400 Series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow and power, and precision computer-controlled CNC manufacturing ensures an accurate fit. It's just what you'd expect from the world's most experienced (and most winning) exhaust brand.
| Product Attributes | |
|---|---|
| Brand | Borla |
| Manufacturer's Part Number | 140123 |
| Part Type | Exhaust Systems |
| Product Line | Borla S-Type Cat-Back Exhaust Systems |
| UPC | 808422401234 |
| System Material | 304 stainless steel |
| System Style | Cat-back |
| Exhaust Type | Single in/Dual out |
| Exit Location | Split rear |
| System Finish | Natural |
| Catalytic Converter(s) Included | No |
| Intermediate Pipe Diameter (in.) | 2.50 in. |
| Muffler Included | Yes |
| Muffler Quantity | Three |
| Muffler Configuration | Single inlet/Single outlet |
| Muffler Style | Turbo |
| Muffler Material | 304 stainless steel |
| Muffler Color | Natural |
| Hardware Included | Yes |
| Tailpipe Diameter (in.) | 2.00 in. |
| Tip Included | Yes |
| Tip Outlet Size (in.) | 4.25 x 3.50 |
| Tip Quantity | 2 |
| Tip Shape | Oval |
| Tip Cut | Slant |
| Tip Edge Style | Rolled edge |
| Tip Material | 304 stainless steel |
| Tip Color | Polished |
| Remanufactured | No |
| Quantity | Sold as a kit. |
| Notes | System includes single inlet single outlet front muffler and two single inlet single outlet rear mufflers. |
| Special Attention | It is illegal to install parts or components that bypass, defeat, or render inoperative the manufacturers’ technology and design necessary to reduce vehicle emissions to meet state and federal Clean Air Act standards. |
Brochures
Compatibility
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